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Cheap flights from Seattle to Ireland from €254

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
€345Icelandair
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Fri, 5 Dec - Fri, 12 Dec
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
€346Icelandair
Find Deal
Fri, 16 Jan - Tue, 20 Jan
British Airways Logo
18:50 - 19:45SEA-DUB
16h 55m1 stop
British Airways Logo
08:50 - 16:55DUB-SEA
16h 05m1 stop
€354British Airways
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Wed, 31 Dec - Tue, 17 Feb
Aer Lingus Logo
20:05 - 13:10SEA-DUB
9h 05mdirect
Aer Lingus Logo
16:30 - 18:20DUB-SEA
9h 50mdirect
€357Aer Lingus
Find Deal
Sun, 9 Nov - Wed, 19 Nov
American Airlines Logo
13:25 - 10:15SEA-DUB
12h 50m1 stop
American Airlines Logo
10:00 - 16:55DUB-SEA
14h 55m1 stop
€358American Airlines
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Tue, 11 Nov - Tue, 18 Nov
British Airways Logo
18:50 - 17:00SEA-DUB
14h 10m1 stop
British Airways Logo
08:50 - 16:55DUB-SEA
16h 05m1 stop
€359British Airways
Find Deal
Tue, 30 Dec - Tue, 17 Feb
American Airlines Logo
13:25 - 10:15SEA-DUB
12h 50m1 stop
American Airlines Logo
11:30 - 22:20DUB-SEA
18h 50m1 stop
€360American Airlines
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Tue, 11 Nov - Tue, 18 Nov
Multiple Airlines Logo
18:50 - 17:45SEA-DUB
14h 55m1 stop
Multiple Airlines Logo
11:30 - 20:03DUB-SEA
16h 33m2 stops
€364Multiple Airlines
Find Deal
Tue, 11 Nov - Tue, 18 Nov
Multiple Airlines Logo
18:50 - 19:40SEA-DUB
16h 50m1 stop
Multiple Airlines Logo
09:40 - 11:05DUB-SEA
33h 25m2 stops
€365Multiple Airlines
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Tue, 13 Jan - Wed, 21 Jan
Aer Lingus Logo
20:05 - 13:10SEA-DUB
9h 05mdirect
Aer Lingus Logo
16:30 - 19:20DUB-SEA
9h 50mdirect
€381Aer Lingus
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Wed, 4 Mar - Fri, 13 Mar

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
5 Dec
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
12 Dec
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
€345
Find similar
Icelandair
16 Jan
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
20 Jan
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
€346
Find similar
Icelandair
23 Feb
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
28 Feb
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
€347
Find similar

Delta flights from Seattle to Ireland

Our best Delta deals on Seattle to Ireland flight tickets
Delta
29 Dec
SEA00:55Seattle/Tacoma Intl
22h 50m
1 stop
DUB07:45Dublin
20 Feb
DUB10:45Dublin
16h 40m
1 stop
SEA19:25Seattle/Tacoma Intl
€371
Find similar
Delta
21 Feb
SEA22:00Seattle/Tacoma Intl
27h 20m
1 stop
DUB09:20Dublin
6 Mar
DUB11:30Dublin
18h 35m
1 stop
SEA22:05Seattle/Tacoma Intl
€377
Find similar
Delta
1 Dec
SEA23:55Seattle/Tacoma Intl
23h 50m
1 stop
DUB07:45Dublin
10 Dec
DUB10:45Dublin
21h 13m
2 stops
SEA23:58Seattle/Tacoma Intl
€380
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 29 October 2025.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 5/12

14:35-10:15

1 stop11h 40m

Dublin

Fri 12/12

11:30-17:00

1 stop13h 30m

€345

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 16/1

14:35-10:15

1 stop11h 40m

Dublin

Tue 20/1

11:30-17:00

1 stop13h 30m

€346

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 31/12

18:50-19:45

1 stop16h 55m

Dublin

Tue 17/2

08:50-16:55

1 stop16h 05m

€354

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 9/11

20:05-13:10

Nonstop9h 05m

Dublin

Wed 19/11

16:30-18:20

Nonstop9h 50m

€357

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 11/11

13:25-10:15

1 stop12h 50m

Dublin

Tue 18/11

10:00-16:55

1 stop14h 55m

€358

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 30/12

18:50-17:00

1 stop14h 10m

Dublin

Tue 17/2

08:50-16:55

1 stop16h 05m

€359

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 11/11

13:25-10:15

1 stop12h 50m

Dublin

Tue 18/11

11:30-22:20

1 stop18h 50m

€360

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 11/11

18:50-17:45

1 stop14h 55m

Dublin

Tue 18/11

11:30-20:03

2 stops16h 33m

€364

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 13/1

18:50-19:40

1 stop16h 50m

Dublin

Wed 21/1

09:40-11:05

2 stops33h 25m

€365

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 4/3

20:05-13:10

Nonstop9h 05m

Dublin

Fri 13/3

16:30-19:20

Nonstop9h 50m

€381

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of November is another great option to travel to Ireland, with average flight prices from Seattle averaging around €437.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €567 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €507 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 00m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Ireland

1 airport
The fastest flight from Seattle to Ireland takes 9h 00m
Direct flights go from Seattle to Ireland on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights..
There is 1 airport near Ireland: Dublin (DUB)
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

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